1076513661 has 24 divisors (see below), whose sum is σ = 1648183680. Its totient is φ = 674741376.

The previous prime is 1076513653. The next prime is 1076513681. The reversal of 1076513661 is 1663156701.

1076513661 is a `hidden beast` number, since 10 + 76 + 513 + 6 + 61 = 666.

It is not a de Polignac number, because 1076513661 - 2³ = 1076513653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1076513621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165570 + ... + 171948.

It is an arithmetic number, because the mean of its divisors is an integer number (68674320).

Almost surely, 2^1076513661 is an apocalyptic number.

It is an amenable number.

1076513661 is a deficient number, since it is larger than the sum of its proper divisors (571670019).

1076513661 is a wasteful number, since it uses less digits than its factorization.

1076513661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7505 (or 7502 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 1076513661 is about 32810.2676154889. The cubic root of 1076513661 is about 1024.8803861213.

The spelling of 1076513661 in words is "one billion, seventy-six million, five hundred thirteen thousand, six hundred sixty-one".