165215061693334 has 32 divisors (see below), whose sum is σ = 250334875514880. Its totient is φ = 81770791673952.

The previous prime is 165215061693329. The next prime is 165215061693347. The reversal of 165215061693334 is 433396160512561.

It is a super-2 number, since 2×165215061693334² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6981987987 + ... + 6982011649.

It is an arithmetic number, because the mean of its divisors is an integer number (7822964859840).

Almost surely, 2^{165215061693334} is an apocalyptic number.

165215061693334 is a deficient number, since it is larger than the sum of its proper divisors (85119813821546).

165215061693334 is a wasteful number, since it uses less digits than its factorization.

165215061693334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36724.

The product of its (nonzero) digits is 10497600, while the sum is 55.

The spelling of 165215061693334 in words is "one hundred sixty-five trillion, two hundred fifteen billion, sixty-one million, six hundred ninety-three thousand, three hundred thirty-four".