61366136231636 has 48 divisors (see below), whose sum is σ = 115855653666816. Its totient is φ = 28332727847424.

The previous prime is 61366136231593. The next prime is 61366136231641. The reversal of 61366136231636 is 63613263166316.

It is a super-2 number, since 2×61366136231636² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210208805 + ... + 210500531.

It is an arithmetic number, because the mean of its divisors is an integer number (2413659451392).

Almost surely, 2^{61366136231636} is an apocalyptic number.

It is an amenable number.

61366136231636 is a deficient number, since it is larger than the sum of its proper divisors (54489517435180).

61366136231636 is a wasteful number, since it uses less digits than its factorization.

61366136231636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350168 (or 350166 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 53.

The spelling of 61366136231636 in words is "sixty-one trillion, three hundred sixty-six billion, one hundred thirty-six million, two hundred thirty-one thousand, six hundred thirty-six".