61611366 has 32 divisors (see below), whose sum is σ = 131453280. Its totient is φ = 19183616.

The previous prime is 61611359. The next prime is 61611373. The reversal of 61611366 is 66311616.

It is an interprime number because it is at equal distance from previous prime (61611359) and next prime (61611373).

It is a nude number because it is divisible by every one of its digits.

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, 11770 + ... + 16178.

It is an arithmetic number, because the mean of its divisors is an integer number (4107915).

Almost surely, 2^61611366 is an apocalyptic number.

61611366 is an abundant number, since it is smaller than the sum of its proper divisors (69841914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61611366 is a wasteful number, since it uses less digits than its factorization.

61611366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568.

The product of its digits is 3888, while the sum is 30.

The square root of 61611366 is about 7849.2907959892. The cubic root of 61611366 is about 394.9604532325.

The spelling of 61611366 in words is "sixty-one million, six hundred eleven thousand, three hundred sixty-six".