621622024055 has 16 divisors (see below), whose sum is σ = 804728006784. Its totient is φ = 459213780480.

The previous prime is 621622024033. The next prime is 621622024087. The reversal of 621622024055 is 550420226126.

It is not a de Polignac number, because 621622024055 - 2²⁸ = 621353588599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68987951 + ... + 68996960.

It is an arithmetic number, because the mean of its divisors is an integer number (50295500424).

Almost surely, 2^621622024055 is an apocalyptic number.

621622024055 is a deficient number, since it is larger than the sum of its proper divisors (183105982729).

621622024055 is a wasteful number, since it uses less digits than its factorization.

621622024055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137984986.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 621622024055 in words is "six hundred twenty-one billion, six hundred twenty-two million, twenty-four thousand, fifty-five".