6161319651 has 8 divisors (see below), whose sum is σ = 8221081680. Its totient is φ = 4104552032.

The previous prime is 6161319643. The next prime is 6161319653. The reversal of 6161319651 is 1569131616.

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 6161319651 - 2³ = 6161319643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6161319653) 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, 743796 + ... + 752033.

It is an arithmetic number, because the mean of its divisors is an integer number (1027635210).

Almost surely, 2^6161319651 is an apocalyptic number.

6161319651 is a deficient number, since it is larger than the sum of its proper divisors (2059762029).

6161319651 is a wasteful number, since it uses less digits than its factorization.

6161319651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497205.

The product of its digits is 29160, while the sum is 39.

The square root of 6161319651 is about 78494.0739865119. The cubic root of 6161319651 is about 1833.2621848495.

The spelling of 6161319651 in words is "six billion, one hundred sixty-one million, three hundred nineteen thousand, six hundred fifty-one".