20124645002 has 32 divisors (see below), whose sum is σ = 38273610240. Its totient is φ = 7707872880.

The previous prime is 20124644989. The next prime is 20124645029. The reversal of 20124645002 is 20054642102.

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, 1098368 + ... + 1116539.

It is an arithmetic number, because the mean of its divisors is an integer number (1196050320).

Almost surely, 2^20124645002 is an apocalyptic number.

20124645002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20124645002 is a deficient number, since it is larger than the sum of its proper divisors (18148965238).

20124645002 is a wasteful number, since it uses less digits than its factorization.

20124645002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214986.

The product of its (nonzero) digits is 3840, while the sum is 26.

The spelling of 20124645002 in words is "twenty billion, one hundred twenty-four million, six hundred forty-five thousand, two".