20740218372 has 48 divisors (see below), whose sum is σ = 53788701120. Its totient is φ = 6911122176.

The previous prime is 20740218371. The next prime is 20740218377. The reversal of 20740218372 is 27381204702.

20740218372 is a `hidden beast` number, since 2 + 0 + 7 + 402 + 183 + 72 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (20740218371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314068 + ... + 374324.

It is an arithmetic number, because the mean of its divisors is an integer number (1120597940).

Almost surely, 2^20740218372 is an apocalyptic number.

It is an amenable number.

20740218372 is an abundant number, since it is smaller than the sum of its proper divisors (33048482748).

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

20740218372 is a wasteful number, since it uses less digits than its factorization.

20740218372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63457 (or 63449 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 20740218372 in words is "twenty billion, seven hundred forty million, two hundred eighteen thousand, three hundred seventy-two".