61206516 has 60 divisors (see below), whose sum is σ = 182870688. Its totient is φ = 17486928.

The previous prime is 61206503. The next prime is 61206517. The reversal of 61206516 is 61560216.

It is a happy number.

61206516 is a `hidden beast` number, since 6 + 1 + 2 + 0 + 651 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 61206516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61206517) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11226 + ... + 15761.

Almost surely, 2^61206516 is an apocalyptic number.

It is an amenable number.

61206516 is an abundant number, since it is smaller than the sum of its proper divisors (121664172).

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

61206516 is a wasteful number, since it uses less digits than its factorization.

61206516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27010 (or 26999 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 61206516 is about 7823.4593371475. The cubic root of 61206516 is about 394.0934527135.

The spelling of 61206516 in words is "sixty-one million, two hundred six thousand, five hundred sixteen".