18357232665046 has 16 divisors (see below), whose sum is σ = 30039564764880. Its totient is φ = 8344069786080.

The previous prime is 18357232665043. The next prime is 18357232665049. The reversal of 18357232665046 is 64056623275381.

It is an interprime number because it is at equal distance from previous prime (18357232665043) and next prime (18357232665049).

It is a super-2 number, since 2×18357232665046² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18357232665043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4856541 + ... + 7765336.

It is an arithmetic number, because the mean of its divisors is an integer number (1877472797805).

Almost surely, 2^{18357232665046} is an apocalyptic number.

18357232665046 is a deficient number, since it is larger than the sum of its proper divisors (11682332099834).

18357232665046 is a wasteful number, since it uses less digits than its factorization.

18357232665046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12687999.

The product of its (nonzero) digits is 43545600, while the sum is 58.

The spelling of 18357232665046 in words is "eighteen trillion, three hundred fifty-seven billion, two hundred thirty-two million, six hundred sixty-five thousand, forty-six".