61455300615 has 40 divisors (see below), whose sum is σ = 110637294768. Its totient is φ = 32635440000.

The previous prime is 61455300541. The next prime is 61455300637. The reversal of 61455300615 is 51600355416.

61455300615 is a `hidden beast` number, since 6 + 1 + 4 + 5 + 5 + 30 + 0 + 615 = 666.

It is not a de Polignac number, because 61455300615 - 2¹² = 61455296519 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61455300615.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 231261 + ... + 419990.

Almost surely, 2^61455300615 is an apocalyptic number.

61455300615 is a deficient number, since it is larger than the sum of its proper divisors (49181994153).

61455300615 is a wasteful number, since it uses less digits than its factorization.

61455300615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651501 (or 651492 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 61455300615 in words is "sixty-one billion, four hundred fifty-five million, three hundred thousand, six hundred fifteen".