155698622209 has 16 divisors (see below), whose sum is σ = 171304906752. Its totient is φ = 140625620928.

The previous prime is 155698622197. The next prime is 155698622269. The reversal of 155698622209 is 902226896551.

It is not a de Polignac number, because 155698622209 - 2¹⁵ = 155698589441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155698622209.

It is not an unprimeable number, because it can be changed into a prime (155698622269) 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, 55009 + ... + 560734.

It is an arithmetic number, because the mean of its divisors is an integer number (10706556672).

Almost surely, 2^155698622209 is an apocalyptic number.

It is an amenable number.

155698622209 is a deficient number, since it is larger than the sum of its proper divisors (15606284543).

155698622209 is a wasteful number, since it uses less digits than its factorization.

155698622209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616176.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 155698622209 in words is "one hundred fifty-five billion, six hundred ninety-eight million, six hundred twenty-two thousand, two hundred nine".