16351146543640 has 32 divisors (see below), whose sum is σ = 36790713420480. Its totient is φ = 6540345960192.

The previous prime is 16351146543631. The next prime is 16351146543671. The reversal of 16351146543640 is 4634564115361.

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, 1149549 + ... + 5832988.

It is an arithmetic number, because the mean of its divisors is an integer number (1149709794390).

Almost surely, 2^{16351146543640} is an apocalyptic number.

16351146543640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16351146543640 is an abundant number, since it is smaller than the sum of its proper divisors (20439566876840).

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

16351146543640 is a wasteful number, since it uses less digits than its factorization.

16351146543640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7041091 (or 7041087 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 16351146543640 in words is "sixteen trillion, three hundred fifty-one billion, one hundred forty-six million, five hundred forty-three thousand, six hundred forty".