1540534100664 has 32 divisors (see below), whose sum is σ = 4147591810320. Its totient is φ = 474010492416.

The previous prime is 1540534100659. The next prime is 1540534100669. The reversal of 1540534100664 is 4660014350451.

It is an interprime number because it is at equal distance from previous prime (1540534100659) and next prime (1540534100669).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540534100669) 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, 2468804337 + ... + 2468804960.

Almost surely, 2^{1540534100664} is an apocalyptic number.

It is an amenable number.

1540534100664 is an abundant number, since it is smaller than the sum of its proper divisors (2607057709656).

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

1540534100664 is a wasteful number, since it uses less digits than its factorization.

1540534100664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937609319 (or 4937609315 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 1540534100664 in words is "one trillion, five hundred forty billion, five hundred thirty-four million, one hundred thousand, six hundred sixty-four".