1515456501042 has 64 divisors (see below), whose sum is σ = 3418110627840. Its totient is φ = 443764305600.

The previous prime is 1515456501029. The next prime is 1515456501043. The reversal of 1515456501042 is 2401056545151.

It is a super-2 number, since 2×1515456501042² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1515456501043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 855184 + ... + 1939652.

It is an arithmetic number, because the mean of its divisors is an integer number (53407978560).

Almost surely, 2^{1515456501042} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1515456501042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1709055313920).

1515456501042 is an abundant number, since it is smaller than the sum of its proper divisors (1902654126798).

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

1515456501042 is a wasteful number, since it uses less digits than its factorization.

1515456501042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085199.

The product of its (nonzero) digits is 120000, while the sum is 39.

The spelling of 1515456501042 in words is "one trillion, five hundred fifteen billion, four hundred fifty-six million, five hundred one thousand, forty-two".