1566145422612 has 72 divisors (see below), whose sum is σ = 4149517392384. Its totient is φ = 497111414976.

The previous prime is 1566145422599. The next prime is 1566145422643. The reversal of 1566145422612 is 2162245416651.

1566145422612 is a `hidden beast` number, since 1 + 5 + 6 + 6 + 1 + 4 + 5 + 4 + 22 + 612 = 666.

It is a super-2 number, since 2×1566145422612² (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 23 ways as a sum of consecutive naturals, for example, 4056343 + ... + 4425630.

Almost surely, 2^{1566145422612} is an apocalyptic number.

1566145422612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1566145422612 is an abundant number, since it is smaller than the sum of its proper divisors (2583371969772).

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

1566145422612 is a wasteful number, since it uses less digits than its factorization.

1566145422612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8482229 (or 8482224 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 1566145422612 in words is "one trillion, five hundred sixty-six billion, one hundred forty-five million, four hundred twenty-two thousand, six hundred twelve".