4540615256640 has 112 divisors (see below), whose sum is σ = 14417309760192. Its totient is φ = 1210758813696.

The previous prime is 4540615256603. The next prime is 4540615256647. The reversal of 4540615256640 is 466525160454.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 4540615256640.

It is not an unprimeable number, because it can be changed into a prime (4540615256647) 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, 17136042 + ... + 17398998.

Almost surely, 2^{4540615256640} is an apocalyptic number.

4540615256640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4540615256640 is an abundant number, since it is smaller than the sum of its proper divisors (9876694503552).

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

4540615256640 is a wasteful number, since it uses less digits than its factorization.

4540615256640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280964 (or 280954 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 4540615256640 in words is "four trillion, five hundred forty billion, six hundred fifteen million, two hundred fifty-six thousand, six hundred forty".