155211005677 has 16 divisors (see below), whose sum is σ = 191216511360. Its totient is φ = 122683724352.

The previous prime is 155211005657. The next prime is 155211005689. The reversal of 155211005677 is 776500112551.

It is not a de Polignac number, because 155211005677 - 2²³ = 155202617069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155211005617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744178 + ... + 929635.

It is an arithmetic number, because the mean of its divisors is an integer number (11951031960).

Almost surely, 2^155211005677 is an apocalyptic number.

It is an amenable number.

155211005677 is a deficient number, since it is larger than the sum of its proper divisors (36005505683).

155211005677 is a wasteful number, since it uses less digits than its factorization.

155211005677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674852.

The product of its (nonzero) digits is 73500, while the sum is 40.

The spelling of 155211005677 in words is "one hundred fifty-five billion, two hundred eleven million, five thousand, six hundred seventy-seven".