161474617730 has 8 divisors (see below), whose sum is σ = 290654311932. Its totient is φ = 64589847088.

The previous prime is 161474617721. The next prime is 161474617763. The reversal of 161474617730 is 37716474161.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 158680332409 + 2794285321 = 398347^2 + 52861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8073730877 + ... + 8073730896.

Almost surely, 2^161474617730 is an apocalyptic number.

161474617730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161474617730 is a deficient number, since it is larger than the sum of its proper divisors (129179694202).

161474617730 is a wasteful number, since it uses less digits than its factorization.

161474617730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16147461780.

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 161474617730 in words is "one hundred sixty-one billion, four hundred seventy-four million, six hundred seventeen thousand, seven hundred thirty".