61500501065651 has 8 divisors (see below), whose sum is σ = 62419028422080. Its totient is φ = 60581991633768.

The previous prime is 61500501065639. The next prime is 61500501065657. The reversal of 61500501065651 is 15656010500516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61500501065651 - 2¹⁸ = 61500500803507 is a prime.

It is a super-2 number, since 2×61500501065651² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61500501065599 and 61500501065608.

It is not an unprimeable number, because it can be changed into a prime (61500501065657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2513180 + ... + 11371766.

It is an arithmetic number, because the mean of its divisors is an integer number (7802378552760).

Almost surely, 2^{61500501065651} is an apocalyptic number.

61500501065651 is a deficient number, since it is larger than the sum of its proper divisors (918527356429).

61500501065651 is a wasteful number, since it uses less digits than its factorization.

61500501065651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8962273.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 61500501065651 in words is "sixty-one trillion, five hundred billion, five hundred one million, sixty-five thousand, six hundred fifty-one".