923940155554 has 16 divisors (see below), whose sum is σ = 1524274432128. Its totient is φ = 417360855312.

The previous prime is 923940155497. The next prime is 923940155563. The reversal of 923940155554 is 455551049329.

It is a super-2 number, since 2×923940155554² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378043032 + ... + 378045475.

It is an arithmetic number, because the mean of its divisors is an integer number (95267152008).

Almost surely, 2^923940155554 is an apocalyptic number.

923940155554 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

923940155554 is a deficient number, since it is larger than the sum of its proper divisors (600334276574).

923940155554 is a wasteful number, since it uses less digits than its factorization.

923940155554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756088569.

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 923940155554 in words is "nine hundred twenty-three billion, nine hundred forty million, one hundred fifty-five thousand, five hundred fifty-four".