23220550651 has 16 divisors (see below), whose sum is σ = 24110445568. Its totient is φ = 22339864800.

The previous prime is 23220550649. The next prime is 23220550663. The reversal of 23220550651 is 15605502232.

It is a happy number.

It is not a de Polignac number, because 23220550651 - 2¹ = 23220550649 is a prime.

It is a super-3 number, since 3×23220550651³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23220556651) 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, 3824320 + ... + 3830386.

It is an arithmetic number, because the mean of its divisors is an integer number (1506902848).

Almost surely, 2^23220550651 is an apocalyptic number.

23220550651 is a deficient number, since it is larger than the sum of its proper divisors (889894917).

23220550651 is a wasteful number, since it uses less digits than its factorization.

23220550651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6802.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 23220550651 in words is "twenty-three billion, two hundred twenty million, five hundred fifty thousand, six hundred fifty-one".