155551060012 has 12 divisors (see below), whose sum is σ = 272219963400. Its totient is φ = 77773927616.

The previous prime is 155551060009. The next prime is 155551060019. The reversal of 155551060012 is 210060155551.

It is a super-2 number, since 2×155551060012² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155551060019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167053 + ... + 582244.

It is an arithmetic number, because the mean of its divisors is an integer number (22684996950).

Almost surely, 2^155551060012 is an apocalyptic number.

It is an amenable number.

155551060012 is a deficient number, since it is larger than the sum of its proper divisors (116668903388).

155551060012 is a wasteful number, since it uses less digits than its factorization.

155551060012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801200 (or 801198 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 155551060012 in words is "one hundred fifty-five billion, five hundred fifty-one million, sixty thousand, twelve".