23364400646533 has 16 divisors (see below), whose sum is σ = 24412496524416. Its totient is φ = 22319000383680.

The previous prime is 23364400646527. The next prime is 23364400646563. The reversal of 23364400646533 is 33564600446332.

It is a cyclic number.

It is not a de Polignac number, because 23364400646533 - 2²¹ = 23364398549381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23364400646563) 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, 135618538 + ... + 135790708.

It is an arithmetic number, because the mean of its divisors is an integer number (1525781032776).

Almost surely, 2^{23364400646533} is an apocalyptic number.

23364400646533 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23364400646533 is a deficient number, since it is larger than the sum of its proper divisors (1048095877883).

23364400646533 is a wasteful number, since it uses less digits than its factorization.

23364400646533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179964.

The product of its (nonzero) digits is 11197440, while the sum is 49.

The spelling of 23364400646533 in words is "twenty-three trillion, three hundred sixty-four billion, four hundred million, six hundred forty-six thousand, five hundred thirty-three".