1561001016088 has 16 divisors (see below), whose sum is σ = 2927547811080. Its totient is φ = 780321599808.

The previous prime is 1561001016079. The next prime is 1561001016089. The reversal of 1561001016088 is 8806101001651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1561001016089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22326445 + ... + 22396252.

Almost surely, 2^{1561001016088} is an apocalyptic number.

It is an amenable number.

1561001016088 is a deficient number, since it is larger than the sum of its proper divisors (1366546794992).

1561001016088 is a wasteful number, since it uses less digits than its factorization.

1561001016088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44727066 (or 44727062 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 37.

The spelling of 1561001016088 in words is "one trillion, five hundred sixty-one billion, one million, sixteen thousand, eighty-eight".