161235340498 has 16 divisors (see below), whose sum is σ = 256755350880. Its totient is φ = 75675249216.

The previous prime is 161235340477. The next prime is 161235340501. The reversal of 161235340498 is 894043532161.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6243336 + ... + 6269107.

It is an arithmetic number, because the mean of its divisors is an integer number (16047209430).

Almost surely, 2^161235340498 is an apocalyptic number.

161235340498 is a deficient number, since it is larger than the sum of its proper divisors (95520010382).

161235340498 is a wasteful number, since it uses less digits than its factorization.

161235340498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12512841.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 161235340498 in words is "one hundred sixty-one billion, two hundred thirty-five million, three hundred forty thousand, four hundred ninety-eight".