1491566140848 has 80 divisors (see below), whose sum is σ = 4595135463936. Its totient is φ = 407632980480.

The previous prime is 1491566140817. The next prime is 1491566140861. The reversal of 1491566140848 is 8480416651941.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96496293 + ... + 96511748.

Almost surely, 2^{1491566140848} is an apocalyptic number.

It is an amenable number.

1491566140848 is an abundant number, since it is smaller than the sum of its proper divisors (3103569323088).

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

1491566140848 is a wasteful number, since it uses less digits than its factorization.

1491566140848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193008082 (or 193008076 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 57.

The spelling of 1491566140848 in words is "one trillion, four hundred ninety-one billion, five hundred sixty-six million, one hundred forty thousand, eight hundred forty-eight".