155766474507 has 48 divisors (see below), whose sum is σ = 245103735552. Its totient is φ = 87725695680.

The previous prime is 155766474439. The next prime is 155766474613. The reversal of 155766474507 is 705474667551.

It is not a de Polignac number, because 155766474507 - 2²² = 155762280203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155766474007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3170373 + ... + 3219129.

It is an arithmetic number, because the mean of its divisors is an integer number (5106327824).

Almost surely, 2^155766474507 is an apocalyptic number.

155766474507 is a deficient number, since it is larger than the sum of its proper divisors (89337261045).

155766474507 is a wasteful number, since it uses less digits than its factorization.

155766474507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49088 (or 49081 counting only the distinct ones).

The product of its (nonzero) digits is 24696000, while the sum is 57.

The spelling of 155766474507 in words is "one hundred fifty-five billion, seven hundred sixty-six million, four hundred seventy-four thousand, five hundred seven".