64115304100 has 27 divisors (see below), whose sum is σ = 139135704771. Its totient is φ = 25645108800.

The previous prime is 64115304061. The next prime is 64115304119. The reversal of 64115304100 is 140351146.

The square root of 64115304100 is 253210.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2217844836 + 61897459264 = 47094^2 + 248792^2 .

It is a super-2 number, since 2×64115304100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2519440 + ... + 2544760.

Almost surely, 2^64115304100 is an apocalyptic number.

64115304100 is the 253210-th square number.

It is an amenable number.

64115304100 is an abundant number, since it is smaller than the sum of its proper divisors (75020400671).

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

64115304100 is an frugal number, since it uses more digits than its factorization.

64115304100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50656 (or 25328 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Multiplying 64115304100 by its sum of digits (25), we get a square (1602882602500 = 1266050²).

64115304100 divided by its sum of digits (25) gives a square (2564612164 = 50642²).

Adding to 64115304100 its reverse (140351146), we get a palindrome (64255655246).

The spelling of 64115304100 in words is "sixty-four billion, one hundred fifteen million, three hundred four thousand, one hundred".