22146453651 has 16 divisors (see below), whose sum is σ = 33844241664. Its totient is φ = 12618642144.

The previous prime is 22146453649. The next prime is 22146453653. The reversal of 22146453651 is 15635464122.

It is an interprime number because it is at equal distance from previous prime (22146453649) and next prime (22146453653).

It is not a de Polignac number, because 22146453651 - 2¹ = 22146453649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22146453653) 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, 1512300 + ... + 1526873.

It is an arithmetic number, because the mean of its divisors is an integer number (2115265104).

Almost surely, 2^22146453651 is an apocalyptic number.

22146453651 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22146453651 is a deficient number, since it is larger than the sum of its proper divisors (11697788013).

22146453651 is a wasteful number, since it uses less digits than its factorization.

22146453651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039530.

The product of its digits is 172800, while the sum is 39.

The spelling of 22146453651 in words is "twenty-two billion, one hundred forty-six million, four hundred fifty-three thousand, six hundred fifty-one".