1147140477561 has 32 divisors (see below), whose sum is σ = 1666292463360. Its totient is φ = 697745664000.

The previous prime is 1147140477529. The next prime is 1147140477589. The reversal of 1147140477561 is 1657740417411.

It is not a de Polignac number, because 1147140477561 - 2⁵ = 1147140477529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1147140477561.

It is not an unprimeable number, because it can be changed into a prime (1147140407561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9663276 + ... + 9781266.

It is an arithmetic number, because the mean of its divisors is an integer number (52071639480).

Almost surely, 2^{1147140477561} is an apocalyptic number.

It is an amenable number.

1147140477561 is a deficient number, since it is larger than the sum of its proper divisors (519151985799).

1147140477561 is a wasteful number, since it uses less digits than its factorization.

1147140477561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120897.

The product of its (nonzero) digits is 658560, while the sum is 48.

The spelling of 1147140477561 in words is "one trillion, one hundred forty-seven billion, one hundred forty million, four hundred seventy-seven thousand, five hundred sixty-one".