23153221216464 has 40 divisors (see below), whose sum is σ = 59812736263680. Its totient is φ = 7717708389888.

The previous prime is 23153221216453. The next prime is 23153221216501. The reversal of 23153221216464 is 46461212235132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12595857 + ... + 14316495.

It is an arithmetic number, because the mean of its divisors is an integer number (1495318406592).

Almost surely, 2^{23153221216464} is an apocalyptic number.

23153221216464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23153221216464 is an abundant number, since it is smaller than the sum of its proper divisors (36659515047216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23153221216464 is a wasteful number, since it uses less digits than its factorization.

23153221216464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000987 (or 2000981 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The spelling of 23153221216464 in words is "twenty-three trillion, one hundred fifty-three billion, two hundred twenty-one million, two hundred sixteen thousand, four hundred sixty-four".