65166155000 has 80 divisors (see below), whose sum is σ = 152972876760. Its totient is φ = 26017200000.

The previous prime is 65166154973. The next prime is 65166155083. The reversal of 65166155000 is 55166156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2692955 + ... + 2717045.

Almost surely, 2^65166155000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65166155000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76486438380).

65166155000 is an abundant number, since it is smaller than the sum of its proper divisors (87806721760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65166155000 is a wasteful number, since it uses less digits than its factorization.

65166155000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24658 (or 24639 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 65166155000 in words is "sixty-five billion, one hundred sixty-six million, one hundred fifty-five thousand".