10651620646 has 16 divisors (see below), whose sum is σ = 16725132288. Its totient is φ = 5081416200.

The previous prime is 10651620641. The next prime is 10651620649. The reversal of 10651620646 is 64602615601.

It is a super-2 number, since 2×10651620646² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10651620641) 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, 1205460 + ... + 1214263.

It is an arithmetic number, because the mean of its divisors is an integer number (1045320768).

Almost surely, 2^10651620646 is an apocalyptic number.

10651620646 is a deficient number, since it is larger than the sum of its proper divisors (6073511642).

10651620646 is a wasteful number, since it uses less digits than its factorization.

10651620646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419827.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 10651620646 in words is "ten billion, six hundred fifty-one million, six hundred twenty thousand, six hundred forty-six".