61530007236157 has 8 divisors (see below), whose sum is σ = 62919002814336. Its totient is φ = 60144338595072.

The previous prime is 61530007236143. The next prime is 61530007236209. The reversal of 61530007236157 is 75163270003516.

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 61530007236157 - 2⁷ = 61530007236029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61530007236107) 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, 831696868 + ... + 831770845.

It is an arithmetic number, because the mean of its divisors is an integer number (7864875351792).

Almost surely, 2^{61530007236157} is an apocalyptic number.

It is an amenable number.

61530007236157 is a deficient number, since it is larger than the sum of its proper divisors (1388995578179).

61530007236157 is a wasteful number, since it uses less digits than its factorization.

61530007236157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663468547.

The product of its (nonzero) digits is 793800, while the sum is 46.

The spelling of 61530007236157 in words is "sixty-one trillion, five hundred thirty billion, seven million, two hundred thirty-six thousand, one hundred fifty-seven".