61630516 has 12 divisors (see below), whose sum is σ = 107951620. Its totient is φ = 30787200.

The previous prime is 61630483. The next prime is 61630519. The reversal of 61630516 is 61503616.

It can be written as a sum of positive squares in 2 ways, for example, as 17673616 + 43956900 = 4204^2 + 6630^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61630519) 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, 1611 + ... + 11218.

Almost surely, 2^61630516 is an apocalyptic number.

It is an amenable number.

61630516 is a deficient number, since it is larger than the sum of its proper divisors (46321104).

61630516 is a wasteful number, since it uses less digits than its factorization.

61630516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14034 (or 14032 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 61630516 is about 7850.5105566453. The cubic root of 61630516 is about 395.0013694339.

The spelling of 61630516 in words is "sixty-one million, six hundred thirty thousand, five hundred sixteen".