1540361660464 has 40 divisors (see below), whose sum is σ = 3255989460480. Its totient is φ = 700115995200.

The previous prime is 1540361660437. The next prime is 1540361660491. The reversal of 1540361660464 is 4640661630451.

It is an interprime number because it is at equal distance from previous prime (1540361660437) and next prime (1540361660491).

It is a super-2 number, since 2×1540361660464² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 2315197 + ... + 2905315.

It is an arithmetic number, because the mean of its divisors is an integer number (81399736512).

Almost surely, 2^{1540361660464} is an apocalyptic number.

It is an amenable number.

1540361660464 is an abundant number, since it is smaller than the sum of its proper divisors (1715627800016).

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

1540361660464 is a wasteful number, since it uses less digits than its factorization.

1540361660464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604969 (or 604963 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 1540361660464 in words is "one trillion, five hundred forty billion, three hundred sixty-one million, six hundred sixty thousand, four hundred sixty-four".