61620133151 has 2 divisors, whose sum is σ = 61620133152. Its totient is φ = 61620133150.

The previous prime is 61620133147. The next prime is 61620133181. The reversal of 61620133151 is 15133102616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61620133151 - 2² = 61620133147 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61620133181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30810066575 + 30810066576.

It is an arithmetic number, because the mean of its divisors is an integer number (30810066576).

Almost surely, 2^61620133151 is an apocalyptic number.

61620133151 is a deficient number, since it is larger than the sum of its proper divisors (1).

61620133151 is an equidigital number, since it uses as much as digits as its factorization.

61620133151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

Adding to 61620133151 its reverse (15133102616), we get a palindrome (76753235767).

The spelling of 61620133151 in words is "sixty-one billion, six hundred twenty million, one hundred thirty-three thousand, one hundred fifty-one".