61153215077467 has 2 divisors, whose sum is σ = 61153215077468. Its totient is φ = 61153215077466.

The previous prime is 61153215077443. The next prime is 61153215077557. The reversal of 61153215077467 is 76477051235116.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61153215077467 - 2²³ = 61153206688859 is a prime.

It is a super-2 number, since 2×61153215077467² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61153215077407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30576607538733 + 30576607538734.

It is an arithmetic number, because the mean of its divisors is an integer number (30576607538734).

Almost surely, 2^{61153215077467} is an apocalyptic number.

61153215077467 is a deficient number, since it is larger than the sum of its proper divisors (1).

61153215077467 is an equidigital number, since it uses as much as digits as its factorization.

61153215077467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7408800, while the sum is 55.

The spelling of 61153215077467 in words is "sixty-one trillion, one hundred fifty-three billion, two hundred fifteen million, seventy-seven thousand, four hundred sixty-seven".