20701611388 has 6 divisors (see below), whose sum is σ = 36227819936. Its totient is φ = 10350805692.

The previous prime is 20701611383. The next prime is 20701611397. The reversal of 20701611388 is 88311610702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20701611383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2587701420 + ... + 2587701427.

Almost surely, 2^20701611388 is an apocalyptic number.

It is an amenable number.

20701611388 is a deficient number, since it is larger than the sum of its proper divisors (15526208548).

20701611388 is a wasteful number, since it uses less digits than its factorization.

20701611388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175402851 (or 5175402849 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 20701611388 in words is "twenty billion, seven hundred one million, six hundred eleven thousand, three hundred eighty-eight".