15621052114454 has 16 divisors (see below), whose sum is σ = 23507910006000. Its totient is φ = 7785099622944.

The previous prime is 15621052114411. The next prime is 15621052114469. The reversal of 15621052114454 is 45441125012651.

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, 2591384 + ... + 6160955.

It is an arithmetic number, because the mean of its divisors is an integer number (1469244375375).

Almost surely, 2^{15621052114454} is an apocalyptic number.

15621052114454 is a deficient number, since it is larger than the sum of its proper divisors (7886857891546).

15621052114454 is a wasteful number, since it uses less digits than its factorization.

15621052114454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8755247.

The product of its (nonzero) digits is 192000, while the sum is 41.

The spelling of 15621052114454 in words is "fifteen trillion, six hundred twenty-one billion, fifty-two million, one hundred fourteen thousand, four hundred fifty-four".