1155556164210 has 32 divisors (see below), whose sum is σ = 3169525479552. Its totient is φ = 264127123200.

The previous prime is 1155556164209. The next prime is 1155556164239. The reversal of 1155556164210 is 124616555511.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 2751323991 + ... + 2751324410.

It is an arithmetic number, because the mean of its divisors is an integer number (99047671236).

Almost surely, 2^{1155556164210} is an apocalyptic number.

1155556164210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155556164210 is an abundant number, since it is smaller than the sum of its proper divisors (2013969315342).

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

1155556164210 is a wasteful number, since it uses less digits than its factorization.

1155556164210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5502648418.

The product of its (nonzero) digits is 180000, while the sum is 42.

The spelling of 1155556164210 in words is "one trillion, one hundred fifty-five billion, five hundred fifty-six million, one hundred sixty-four thousand, two hundred ten".