61150266631 has 4 divisors (see below), whose sum is σ = 62011538064. Its totient is φ = 60288995200.

The previous prime is 61150266599. The next prime is 61150266643. The reversal of 61150266631 is 13666205116.

61150266631 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 is a cyclic number.

It is not a de Polignac number, because 61150266631 - 2⁵ = 61150266599 is a prime.

It is a super-2 number, since 2×61150266631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61150261631) 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, 430635610 + ... + 430635751.

It is an arithmetic number, because the mean of its divisors is an integer number (15502884516).

Almost surely, 2^61150266631 is an apocalyptic number.

61150266631 is a deficient number, since it is larger than the sum of its proper divisors (861271433).

61150266631 is an equidigital number, since it uses as much as digits as its factorization.

61150266631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861271432.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 61150266631 in words is "sixty-one billion, one hundred fifty million, two hundred sixty-six thousand, six hundred thirty-one".