2015251044140 has 12 divisors (see below), whose sum is σ = 4232027192736. Its totient is φ = 806100417648.

The previous prime is 2015251044127. The next prime is 2015251044187. The reversal of 2015251044140 is 414401525102.

It is a happy number.

It is a super-2 number, since 2×2015251044140² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50381276084 + ... + 50381276123.

It is an arithmetic number, because the mean of its divisors is an integer number (352668932728).

Almost surely, 2^{2015251044140} is an apocalyptic number.

2015251044140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2015251044140 is an abundant number, since it is smaller than the sum of its proper divisors (2216776148596).

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

2015251044140 is a wasteful number, since it uses less digits than its factorization.

2015251044140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100762552216 (or 100762552214 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 2015251044140 its reverse (414401525102), we get a palindrome (2429652569242).

The spelling of 2015251044140 in words is "two trillion, fifteen billion, two hundred fifty-one million, forty-four thousand, one hundred forty".