1615625045140 has 96 divisors (see below), whose sum is σ = 3668124579840. Its totient is φ = 595986547200.

The previous prime is 1615625045017. The next prime is 1615625045141. The reversal of 1615625045140 is 415405265161.

It is a super-2 number, since 2×1615625045140² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1615625045093 and 1615625045102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1615625045141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3625350 + ... + 4046530.

It is an arithmetic number, because the mean of its divisors is an integer number (38209631040).

Almost surely, 2^{1615625045140} is an apocalyptic number.

1615625045140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1615625045140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1834062289920).

1615625045140 is an abundant number, since it is smaller than the sum of its proper divisors (2052499534700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1615625045140 is a wasteful number, since it uses less digits than its factorization.

1615625045140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421513 (or 421511 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 1615625045140 in words is "one trillion, six hundred fifteen billion, six hundred twenty-five million, forty-five thousand, one hundred forty".