1321216000496 has 20 divisors (see below), whose sum is σ = 2925549715632. Its totient is φ = 566235428736.

The previous prime is 1321216000477. The next prime is 1321216000501. The reversal of 1321216000496 is 6940006121231.

It is a super-2 number, since 2×1321216000496² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5898285605 + ... + 5898285828.

Almost surely, 2^{1321216000496} is an apocalyptic number.

1321216000496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1321216000496 is an abundant number, since it is smaller than the sum of its proper divisors (1604333715136).

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

1321216000496 is a wasteful number, since it uses less digits than its factorization.

1321216000496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11796571448 (or 11796571442 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 1321216000496 in words is "one trillion, three hundred twenty-one billion, two hundred sixteen million, four hundred ninety-six", and thus it is an aban number.