616157651 has 2 divisors, whose sum is σ = 616157652. Its totient is φ = 616157650.

The previous prime is 616157629. The next prime is 616157683. The reversal of 616157651 is 156751616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616157651 - 2⁶ = 616157587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (616157351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308078825 + 308078826.

It is an arithmetic number, because the mean of its divisors is an integer number (308078826).

Almost surely, 2^616157651 is an apocalyptic number.

616157651 is a deficient number, since it is larger than the sum of its proper divisors (1).

616157651 is an equidigital number, since it uses as much as digits as its factorization.

616157651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 38.

The square root of 616157651 is about 24822.5230587062. The cubic root of 616157651 is about 850.9367531886.

It can be divided in two parts, 616 and 157651, that multiplied together give a triangular number (97113016 = T₁₃₉₃₆).

The spelling of 616157651 in words is "six hundred sixteen million, one hundred fifty-seven thousand, six hundred fifty-one".