20124611388 has 36 divisors (see below), whose sum is σ = 58137766960. Its totient is φ = 5749888896.

The previous prime is 20124611363. The next prime is 20124611399. The reversal of 20124611388 is 88311642102.

20124611388 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 4 + 611 + 38 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39929533 + ... + 39930036.

Almost surely, 2^20124611388 is an apocalyptic number.

20124611388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20124611388 is an abundant number, since it is smaller than the sum of its proper divisors (38013155572).

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

20124611388 is a wasteful number, since it uses less digits than its factorization.

20124611388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79859586 (or 79859581 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 20124611388 in words is "twenty billion, one hundred twenty-four million, six hundred eleven thousand, three hundred eighty-eight".