247491166079 has 16 divisors (see below), whose sum is σ = 267091976448. Its totient is φ = 228453868032.

The previous prime is 247491166057. The next prime is 247491166099. The reversal of 247491166079 is 970661194742.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247491166079 is a prime.

It is a super-2 number, since 2×247491166079² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247491166009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2470994 + ... + 2569200.

It is an arithmetic number, because the mean of its divisors is an integer number (16693248528).

Almost surely, 2^247491166079 is an apocalyptic number.

247491166079 is a deficient number, since it is larger than the sum of its proper divisors (19600810369).

247491166079 is a wasteful number, since it uses less digits than its factorization.

247491166079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101074.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 247491166079 in words is "two hundred forty-seven billion, four hundred ninety-one million, one hundred sixty-six thousand, seventy-nine".