76665253281856 has 28 divisors (see below), whose sum is σ = 160139591561680. Its totient is φ = 36315119975040.

The previous prime is 76665253281839. The next prime is 76665253281863. The reversal of 76665253281856 is 65818235256667.

It is a super-2 number, since 2×76665253281856² (a number of 29 digits) contains 22 as substring.

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, 31523540430 + ... + 31523542861.

Almost surely, 2^{76665253281856} is an apocalyptic number.

76665253281856 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

76665253281856 is an abundant number, since it is smaller than the sum of its proper divisors (83474338279824).

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

76665253281856 is a wasteful number, since it uses less digits than its factorization.

76665253281856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63047083322 (or 63047083312 counting only the distinct ones).

The product of its digits is 870912000, while the sum is 70.

The spelling of 76665253281856 in words is "seventy-six trillion, six hundred sixty-five billion, two hundred fifty-three million, two hundred eighty-one thousand, eight hundred fifty-six".