161237432702 has 4 divisors (see below), whose sum is σ = 241856149056. Its totient is φ = 80618716350.

The previous prime is 161237432677. The next prime is 161237432723. The reversal of 161237432702 is 207234732161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 207234732161 = 7459 ⋅27783179.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40309358174 + ... + 40309358177.

It is an arithmetic number, because the mean of its divisors is an integer number (60464037264).

Almost surely, 2^161237432702 is an apocalyptic number.

161237432702 is a deficient number, since it is larger than the sum of its proper divisors (80618716354).

161237432702 is an equidigital number, since it uses as much as digits as its factorization.

161237432702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80618716353.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 161237432702 in words is "one hundred sixty-one billion, two hundred thirty-seven million, four hundred thirty-two thousand, seven hundred two".