155715655152211 has 32 divisors (see below), whose sum is σ = 198837612158976. Its totient is φ = 118424213232000.

The previous prime is 155715655152199. The next prime is 155715655152217. The reversal of 155715655152211 is 112251556517551.

It is a cyclic number.

It is not a de Polignac number, because 155715655152211 - 2⁵ = 155715655152179 is a prime.

It is a super-2 number, since 2×155715655152211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155715655152217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99106000 + ... + 100664941.

It is an arithmetic number, because the mean of its divisors is an integer number (6213675379968).

Almost surely, 2^{155715655152211} is an apocalyptic number.

155715655152211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155715655152211 is a deficient number, since it is larger than the sum of its proper divisors (43121957006765).

155715655152211 is a wasteful number, since it uses less digits than its factorization.

155715655152211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199771203.

The product of its digits is 2625000, while the sum is 52.

The spelling of 155715655152211 in words is "one hundred fifty-five trillion, seven hundred fifteen billion, six hundred fifty-five million, one hundred fifty-two thousand, two hundred eleven".