155660601 has 8 divisors (see below), whose sum is σ = 210390880. Its totient is φ = 102352032.

The previous prime is 155660587. The next prime is 155660623. The reversal of 155660601 is 106066551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155660601 - 2⁶ = 155660537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155660101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355171 + ... + 355608.

It is an arithmetic number, because the mean of its divisors is an integer number (26298860).

Almost surely, 2^155660601 is an apocalyptic number.

It is an amenable number.

155660601 is a deficient number, since it is larger than the sum of its proper divisors (54730279).

155660601 is an equidigital number, since it uses as much as digits as its factorization.

155660601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710855.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 155660601 is about 12476.4017649321. The cubic root of 155660601 is about 537.9305809557.

The spelling of 155660601 in words is "one hundred fifty-five million, six hundred sixty thousand, six hundred one".