61633136545051 has 8 divisors (see below), whose sum is σ = 64012434721200. Its totient is φ = 59270772876000.

The previous prime is 61633136545027. The next prime is 61633136545069. The reversal of 61633136545051 is 15054563133616.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61633136545051 is a prime.

It is a super-2 number, since 2×61633136545051² (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 = 61633136544986 and 61633136545004.

It is not an unprimeable number, because it can be changed into a prime (61633136548051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4233619356 + ... + 4233633913.

It is an arithmetic number, because the mean of its divisors is an integer number (8001554340150).

Almost surely, 2^{61633136545051} is an apocalyptic number.

61633136545051 is a deficient number, since it is larger than the sum of its proper divisors (2379298176149).

61633136545051 is a wasteful number, since it uses less digits than its factorization.

61633136545051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467253549.

The product of its (nonzero) digits is 2916000, while the sum is 49.

Adding to 61633136545051 its reverse (15054563133616), we get a palindrome (76687699678667).

The spelling of 61633136545051 in words is "sixty-one trillion, six hundred thirty-three billion, one hundred thirty-six million, five hundred forty-five thousand, fifty-one".