16545727370025 has 144 divisors (see below), whose sum is σ = 34267106764800. Its totient is φ = 7475156599680.

The previous prime is 16545727370009. The next prime is 16545727370063. The reversal of 16545727370025 is 52007372754561.

16545727370025 is a `hidden beast` number, since 1 + 6 + 545 + 7 + 2 + 7 + 3 + 70 + 0 + 25 = 666.

16545727370025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16545727370025 - 2⁴ = 16545727370009 is a prime.

It is a super-2 number, since 2×16545727370025² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 70494816 + ... + 70729134.

It is an arithmetic number, because the mean of its divisors is an integer number (237966019200).

Almost surely, 2^{16545727370025} is an apocalyptic number.

16545727370025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16545727370025 is an abundant number, since it is smaller than the sum of its proper divisors (17721379394775).

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

16545727370025 is a wasteful number, since it uses less digits than its factorization.

16545727370025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234868 (or 234860 counting only the distinct ones).

The product of its (nonzero) digits is 12348000, while the sum is 54.

The spelling of 16545727370025 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty-seven million, three hundred seventy thousand, twenty-five".