169860997942 has 8 divisors (see below), whose sum is σ = 260212592736. Its totient is φ = 83123467032.

The previous prime is 169860997927. The next prime is 169860997967. The reversal of 169860997942 is 249799068961.

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

It is a congruent number.

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, 903515853 + ... + 903516040.

It is an arithmetic number, because the mean of its divisors is an integer number (32526574092).

Almost surely, 2^169860997942 is an apocalyptic number.

169860997942 is a deficient number, since it is larger than the sum of its proper divisors (90351594794).

169860997942 is a wasteful number, since it uses less digits than its factorization.

169860997942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807031942.

The product of its (nonzero) digits is 105815808, while the sum is 70.

The spelling of 169860997942 in words is "one hundred sixty-nine billion, eight hundred sixty million, nine hundred ninety-seven thousand, nine hundred forty-two".