1540553662164 has 24 divisors (see below), whose sum is σ = 3921409322208. Its totient is φ = 466834443040.

The previous prime is 1540553662103. The next prime is 1540553662187. The reversal of 1540553662164 is 4612663550451.

It is a happy number.

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, 5835430407 + ... + 5835430670.

It is an arithmetic number, because the mean of its divisors is an integer number (163392055092).

Almost surely, 2^{1540553662164} is an apocalyptic number.

It is an amenable number.

1540553662164 is an abundant number, since it is smaller than the sum of its proper divisors (2380855660044).

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

1540553662164 is a wasteful number, since it uses less digits than its factorization.

1540553662164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11670861095 (or 11670861093 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 1540553662164 in words is "one trillion, five hundred forty billion, five hundred fifty-three million, six hundred sixty-two thousand, one hundred sixty-four".