20652077651 has 8 divisors (see below), whose sum is σ = 21266558208. Its totient is φ = 20042872000.

The previous prime is 20652077627. The next prime is 20652077653. The reversal of 20652077651 is 15677025602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20652077651 - 2⁶ = 20652077587 is a prime.

It is a super-2 number, since 2×20652077651² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20652077599 and 20652077608.

It is not an unprimeable number, because it can be changed into a prime (20652077653) 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, 1310780 + ... + 1326441.

It is an arithmetic number, because the mean of its divisors is an integer number (2658319776).

Almost surely, 2^20652077651 is an apocalyptic number.

20652077651 is a deficient number, since it is larger than the sum of its proper divisors (614480557).

20652077651 is a wasteful number, since it uses less digits than its factorization.

20652077651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637453.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 20652077651 in words is "twenty billion, six hundred fifty-two million, seventy-seven thousand, six hundred fifty-one".