2015113551400 has 96 divisors (see below), whose sum is σ = 4697330434200. Its totient is φ = 803950617600.

The previous prime is 2015113551383. The next prime is 2015113551463. The reversal of 2015113551400 is 41553115102.

It can be written as a sum of positive squares in 12 ways, for example, as 417907945764 + 1597205605636 = 646458^2 + 1263806^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135955990 + ... + 135970810.

Almost surely, 2^{2015113551400} is an apocalyptic number.

2015113551400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2015113551400 is an abundant number, since it is smaller than the sum of its proper divisors (2682216882800).

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

2015113551400 is a wasteful number, since it uses less digits than its factorization.

2015113551400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16559 (or 16550 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 2015113551400 its reverse (41553115102), we get a palindrome (2056666666502).

The spelling of 2015113551400 in words is "two trillion, fifteen billion, one hundred thirteen million, five hundred fifty-one thousand, four hundred".