1511152251040 has 48 divisors (see below), whose sum is σ = 3570175254240. Its totient is φ = 604447683840.

The previous prime is 1511152251031. The next prime is 1511152251043. The reversal of 1511152251040 is 401522511151.

It is a super-2 number, since 2×1511152251040² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1511152251043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10870291 + ... + 11008429.

It is an arithmetic number, because the mean of its divisors is an integer number (74378651130).

Almost surely, 2^{1511152251040} is an apocalyptic number.

1511152251040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1511152251040 is an abundant number, since it is smaller than the sum of its proper divisors (2059023003200).

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

1511152251040 is a wasteful number, since it uses less digits than its factorization.

1511152251040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206525 (or 206517 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 28.

Adding to 1511152251040 its reverse (401522511151), we get a palindrome (1912674762191).

The spelling of 1511152251040 in words is "one trillion, five hundred eleven billion, one hundred fifty-two million, two hundred fifty-one thousand, forty".