155666070550700 has 72 divisors (see below), whose sum is σ = 338874707818080. Its totient is φ = 62067714508800.

The previous prime is 155666070550691. The next prime is 155666070550733. The reversal of 155666070550700 is 7055070666551.

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, 49976636 + ... + 52999964.

It is an arithmetic number, because the mean of its divisors is an integer number (4706593164140).

Almost surely, 2^{155666070550700} is an apocalyptic number.

155666070550700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155666070550700 is an abundant number, since it is smaller than the sum of its proper divisors (183208637267380).

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

155666070550700 is a wasteful number, since it uses less digits than its factorization.

155666070550700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024987 (or 3024980 counting only the distinct ones).

The product of its (nonzero) digits is 6615000, while the sum is 53.

The spelling of 155666070550700 in words is "one hundred fifty-five trillion, six hundred sixty-six billion, seventy million, five hundred fifty thousand, seven hundred".