1115621621170 has 64 divisors (see below), whose sum is σ = 2423081548800. Its totient is φ = 361272415680.

The previous prime is 1115621621141. The next prime is 1115621621201. The reversal of 1115621621170 is 711261265111.

It is a super-2 number, since 2×1115621621170² (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 31 ways as a sum of consecutive naturals, for example, 826860 + ... + 1707319.

It is an arithmetic number, because the mean of its divisors is an integer number (37860649200).

Almost surely, 2^{1115621621170} is an apocalyptic number.

1115621621170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1115621621170 is an abundant number, since it is smaller than the sum of its proper divisors (1307459927630).

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

1115621621170 is a wasteful number, since it uses less digits than its factorization.

1115621621170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534543.

The product of its (nonzero) digits is 5040, while the sum is 34.

Adding to 1115621621170 its reverse (711261265111), we get a palindrome (1826882886281).

The spelling of 1115621621170 in words is "one trillion, one hundred fifteen billion, six hundred twenty-one million, six hundred twenty-one thousand, one hundred seventy".