16642025352 has 24 divisors (see below), whose sum is σ = 45072152190. Its totient is φ = 5547341760.

The previous prime is 16642025341. The next prime is 16642025359. The reversal of 16642025352 is 25352024661.

16642025352 is a `hidden beast` number, since 1 + 6 + 642 + 0 + 2 + 5 + 3 + 5 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16596138276 + 45887076 = 128826^2 + 6774^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×16642025352² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16642025359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115569549 + ... + 115569692.

Almost surely, 2^16642025352 is an apocalyptic number.

16642025352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16642025352 is an abundant number, since it is smaller than the sum of its proper divisors (28430126838).

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

16642025352 is a wasteful number, since it uses less digits than its factorization.

16642025352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231139253 (or 231139246 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 16642025352 in words is "sixteen billion, six hundred forty-two million, twenty-five thousand, three hundred fifty-two".