16403526452 has 6 divisors (see below), whose sum is σ = 28706171298. Its totient is φ = 8201763224.

The previous prime is 16403526431. The next prime is 16403526479. The reversal of 16403526452 is 25462530461.

It can be written as a sum of positive squares in only one way, i.e., 10382387236 + 6021139216 = 101894^2 + 77596^2 .

It is a super-2 number, since 2×16403526452² (a number of 21 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 as a sum of consecutive naturals, namely, 2050440803 + ... + 2050440810.

It is an arithmetic number, because the mean of its divisors is an integer number (4784361883).

Almost surely, 2^16403526452 is an apocalyptic number.

It is an amenable number.

16403526452 is a deficient number, since it is larger than the sum of its proper divisors (12302644846).

16403526452 is a wasteful number, since it uses less digits than its factorization.

16403526452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100881617 (or 4100881615 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 16403526452 in words is "sixteen billion, four hundred three million, five hundred twenty-six thousand, four hundred fifty-two".