20736551645032 has 32 divisors (see below), whose sum is σ = 38910678105600. Its totient is φ = 10360371697344.

The previous prime is 20736551644961. The next prime is 20736551645039. The reversal of 20736551645032 is 23054615563702.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20736551645039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235821138 + ... + 235909054.

It is an arithmetic number, because the mean of its divisors is an integer number (1215958690800).

Almost surely, 2^{20736551645032} is an apocalyptic number.

It is an amenable number.

20736551645032 is a deficient number, since it is larger than the sum of its proper divisors (18174126460568).

20736551645032 is a wasteful number, since it uses less digits than its factorization.

20736551645032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110065 (or 110061 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 49.

The spelling of 20736551645032 in words is "twenty trillion, seven hundred thirty-six billion, five hundred fifty-one million, six hundred forty-five thousand, thirty-two".