1072501071561 has 48 divisors (see below), whose sum is σ = 1670746808640. Its totient is φ = 660741027840.

The previous prime is 1072501071547. The next prime is 1072501071583. The reversal of 1072501071561 is 1651701052701.

It is a happy number.

1072501071561 is a `hidden beast` number, since 1 + 0 + 7 + 25 + 0 + 1 + 0 + 71 + 561 = 666.

It is not a de Polignac number, because 1072501071561 - 2⁶ = 1072501071497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1072501071511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85268505 + ... + 85281081.

It is an arithmetic number, because the mean of its divisors is an integer number (34807225180).

Almost surely, 2^{1072501071561} is an apocalyptic number.

It is an amenable number.

1072501071561 is a deficient number, since it is larger than the sum of its proper divisors (598245737079).

1072501071561 is a wasteful number, since it uses less digits than its factorization.

1072501071561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24806 (or 24803 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 36.

The spelling of 1072501071561 in words is "one trillion, seventy-two billion, five hundred one million, seventy-one thousand, five hundred sixty-one".