15623506423420 has 48 divisors (see below), whose sum is σ = 37497780669888. Its totient is φ = 5356435737600.

The previous prime is 15623506423411. The next prime is 15623506423477. The reversal of 15623506423420 is 2432460532651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1853620 + ... + 5889220.

It is an arithmetic number, because the mean of its divisors is an integer number (781203763956).

Almost surely, 2^{15623506423420} is an apocalyptic number.

15623506423420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15623506423420 is an abundant number, since it is smaller than the sum of its proper divisors (21874274246468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15623506423420 is a wasteful number, since it uses less digits than its factorization.

15623506423420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063270 (or 4063268 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 15623506423420 in words is "fifteen trillion, six hundred twenty-three billion, five hundred six million, four hundred twenty-three thousand, four hundred twenty".