155345564066 has 96 divisors (see below), whose sum is σ = 300265745472. Its totient is φ = 59595527040.

The previous prime is 155345564021. The next prime is 155345564071. The reversal of 155345564066 is 660465543551.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28360520 + ... + 28365996.

It is an arithmetic number, because the mean of its divisors is an integer number (3127768182).

Almost surely, 2^155345564066 is an apocalyptic number.

155345564066 is a deficient number, since it is larger than the sum of its proper divisors (144920181406).

155345564066 is a wasteful number, since it uses less digits than its factorization.

155345564066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5904 (or 5897 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 50.

The spelling of 155345564066 in words is "one hundred fifty-five billion, three hundred forty-five million, five hundred sixty-four thousand, sixty-six".