1561150167984 has 180 divisors, whose sum is σ = 4980212831048. Its totient is φ = 473075665920.

The previous prime is 1561150167979. The next prime is 1561150168051. The reversal of 1561150167984 is 4897610511651.

1561150167984 is a `hidden beast` number, since 1 + 5 + 61 + 1 + 501 + 6 + 79 + 8 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1561150167984.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1188769 + ... + 2129664.

Almost surely, 2^{1561150167984} is an apocalyptic number.

It is an amenable number.

1561150167984 is an abundant number, since it is smaller than the sum of its proper divisors (3419062663064).

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

1561150167984 is a wasteful number, since it uses less digits than its factorization.

1561150167984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318478 (or 3318449 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 54.

The spelling of 1561150167984 in words is "one trillion, five hundred sixty-one billion, one hundred fifty million, one hundred sixty-seven thousand, nine hundred eighty-four".