21603145512414 has 16 divisors (see below), whose sum is σ = 43206376958352. Its totient is φ = 7201034181888.

The previous prime is 21603145512397. The next prime is 21603145512433. The reversal of 21603145512414 is 41421554130612.

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, 43699 + ... + 6573294.

It is an arithmetic number, because the mean of its divisors is an integer number (2700398559897).

Almost surely, 2^{21603145512414} is an apocalyptic number.

21603145512414 is an abundant number, since it is smaller than the sum of its proper divisors (21603231445938).

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

21603145512414 is a wasteful number, since it uses less digits than its factorization.

21603145512414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7161131.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 21603145512414 in words is "twenty-one trillion, six hundred three billion, one hundred forty-five million, five hundred twelve thousand, four hundred fourteen".