61233661582 has 4 divisors (see below), whose sum is σ = 91850492376. Its totient is φ = 30616830790.

The previous prime is 61233661579. The next prime is 61233661637. The reversal of 61233661582 is 28516633216.

61233661582 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 super-2 number, since 2×61233661582² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15308415394 + ... + 15308415397.

It is an arithmetic number, because the mean of its divisors is an integer number (22962623094).

Almost surely, 2^61233661582 is an apocalyptic number.

61233661582 is a deficient number, since it is larger than the sum of its proper divisors (30616830794).

61233661582 is a wasteful number, since it uses less digits than its factorization.

61233661582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30616830793.

The product of its digits is 311040, while the sum is 43.

The spelling of 61233661582 in words is "sixty-one billion, two hundred thirty-three million, six hundred sixty-one thousand, five hundred eighty-two".