14660157421 has 16 divisors (see below), whose sum is σ = 18427175424. Its totient is φ = 11352449664.

The previous prime is 14660157397. The next prime is 14660157439. The reversal of 14660157421 is 12475106641.

It is a cyclic number.

It is not a de Polignac number, because 14660157421 - 2⁷ = 14660157293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14660157121) 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, 1709560 + ... + 1718113.

It is an arithmetic number, because the mean of its divisors is an integer number (1151698464).

Almost surely, 2^14660157421 is an apocalyptic number.

It is an amenable number.

14660157421 is a deficient number, since it is larger than the sum of its proper divisors (3767018003).

14660157421 is a wasteful number, since it uses less digits than its factorization.

14660157421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427740.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 14660157421 in words is "fourteen billion, six hundred sixty million, one hundred fifty-seven thousand, four hundred twenty-one".