11551302572115 has 64 divisors (see below), whose sum is σ = 19596548643840. Its totient is φ = 5790221107200.

The previous prime is 11551302572113. The next prime is 11551302572143. The reversal of 11551302572115 is 51127520315511.

It is not a de Polignac number, because 11551302572115 - 2¹ = 11551302572113 is a prime.

It is a super-2 number, since 2×11551302572115² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11551302572113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1125085212 + ... + 1125095478.

It is an arithmetic number, because the mean of its divisors is an integer number (306196072560).

Almost surely, 2^{11551302572115} is an apocalyptic number.

11551302572115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11551302572115 is a deficient number, since it is larger than the sum of its proper divisors (8045246071725).

11551302572115 is a wasteful number, since it uses less digits than its factorization.

11551302572115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16012.

The product of its (nonzero) digits is 52500, while the sum is 39.

Adding to 11551302572115 its reverse (51127520315511), we get a palindrome (62678822887626).

The spelling of 11551302572115 in words is "eleven trillion, five hundred fifty-one billion, three hundred two million, five hundred seventy-two thousand, one hundred fifteen".