61475556701 has 4 divisors (see below), whose sum is σ = 66204445692. Its totient is φ = 56746667712.

The previous prime is 61475556683. The next prime is 61475556713. The reversal of 61475556701 is 10765557416.

It is a happy number.

61475556701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7616751076 + 53858805625 = 87274^2 + 232075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61475556701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61475556781) 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, 2364444476 + ... + 2364444501.

It is an arithmetic number, because the mean of its divisors is an integer number (16551111423).

Almost surely, 2^61475556701 is an apocalyptic number.

It is an amenable number.

61475556701 is a deficient number, since it is larger than the sum of its proper divisors (4728888991).

61475556701 is a wasteful number, since it uses less digits than its factorization.

61475556701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728888990.

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 61475556701 in words is "sixty-one billion, four hundred seventy-five million, five hundred fifty-six thousand, seven hundred one".