155566402 has 8 divisors (see below), whose sum is σ = 236161296. Its totient is φ = 76845972.

The previous prime is 155566399. The next prime is 155566427. The reversal of 155566402 is 204665551.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468408 + ... + 468739.

It is an arithmetic number, because the mean of its divisors is an integer number (29520162).

Almost surely, 2^155566402 is an apocalyptic number.

155566402 is a deficient number, since it is larger than the sum of its proper divisors (80594894).

155566402 is an equidigital number, since it uses as much as digits as its factorization.

155566402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937232.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 155566402 is about 12472.6261067988. The cubic root of 155566402 is about 537.8220483587.

The spelling of 155566402 in words is "one hundred fifty-five million, five hundred sixty-six thousand, four hundred two".