1115855999970 has 32 divisors (see below), whose sum is σ = 2678153587200. Its totient is φ = 297550579200.

The previous prime is 1115855999963. The next prime is 1115856000001. The reversal of 1115855999970 is 799995585111.

It is a super-2 number, since 2×1115855999970² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1115855999895 and 1115855999904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151506 + ... + 1501554.

It is an arithmetic number, because the mean of its divisors is an integer number (83692299600).

Almost surely, 2^{1115855999970} is an apocalyptic number.

1115855999970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1115855999970 is an abundant number, since it is smaller than the sum of its proper divisors (1562297587230).

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

1115855999970 is a wasteful number, since it uses less digits than its factorization.

1115855999970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377610.

The product of its (nonzero) digits is 45927000, while the sum is 69.

The spelling of 1115855999970 in words is "one trillion, one hundred fifteen billion, eight hundred fifty-five million, nine hundred ninety-nine thousand, nine hundred seventy".