155707661016 has 48 divisors (see below), whose sum is σ = 432537390600. Its totient is φ = 51900620544.

The previous prime is 155707661003. The next prime is 155707661059. The reversal of 155707661016 is 610166707551.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

155707661016 is a `hidden beast` number, since 1 + 5 + 570 + 7 + 6 + 61 + 0 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5785960 + ... + 5812808.

Almost surely, 2^155707661016 is an apocalyptic number.

It is an amenable number.

155707661016 is an abundant number, since it is smaller than the sum of its proper divisors (276829729584).

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

155707661016 is an frugal number, since it uses more digits than its factorization.

155707661016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53713 (or 26854 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The spelling of 155707661016 in words is "one hundred fifty-five billion, seven hundred seven million, six hundred sixty-one thousand, sixteen".