155505047474 has 64 divisors (see below), whose sum is σ = 276965498880. Its totient is φ = 64077834240.

The previous prime is 155505047441. The next prime is 155505047573. The reversal of 155505047474 is 474740505551.

155505047474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57828722 + ... + 57831410.

It is an arithmetic number, because the mean of its divisors is an integer number (4327585920).

Almost surely, 2^155505047474 is an apocalyptic number.

155505047474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155505047474 is a deficient number, since it is larger than the sum of its proper divisors (121460451406).

155505047474 is a wasteful number, since it uses less digits than its factorization.

155505047474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3543.

The product of its (nonzero) digits is 1960000, while the sum is 47.

The spelling of 155505047474 in words is "one hundred fifty-five billion, five hundred five million, forty-seven thousand, four hundred seventy-four".