16166501832 has 256 divisors, whose sum is σ = 48662208000. Its totient is φ = 4424859648.

The previous prime is 16166501783. The next prime is 16166501863. The reversal of 16166501832 is 23810566161.

It is a super-2 number, since 2×16166501832² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10856544 + ... + 10858032.

It is an arithmetic number, because the mean of its divisors is an integer number (190086750).

Almost surely, 2^16166501832 is an apocalyptic number.

16166501832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16166501832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24331104000).

16166501832 is an abundant number, since it is smaller than the sum of its proper divisors (32495706168).

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

16166501832 is a wasteful number, since it uses less digits than its factorization.

16166501832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 16166501832 in words is "sixteen billion, one hundred sixty-six million, five hundred one thousand, eight hundred thirty-two".