615000400101 has 6 divisors (see below), whose sum is σ = 888333911270. Its totient is φ = 410000266728.

The previous prime is 615000400099. The next prime is 615000400117. The reversal of 615000400101 is 101004000516.

615000400101 is a `hidden beast` number, since 61 + 500 + 0 + 4 + 0 + 0 + 101 = 666.

It can be written as a sum of positive squares in only one way, i.e., 607885308900 + 7115091201 = 779670^2 + 84351^2 .

It is not a de Polignac number, because 615000400101 - 2¹ = 615000400099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615000400171) 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, 34166688886 + ... + 34166688903.

Almost surely, 2^615000400101 is an apocalyptic number.

It is an amenable number.

615000400101 is a deficient number, since it is larger than the sum of its proper divisors (273333511169).

615000400101 is a wasteful number, since it uses less digits than its factorization.

615000400101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68333377795 (or 68333377792 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 615000400101 its reverse (101004000516), we get a palindrome (716004400617).

It can be divided in two parts, 615000 and 400101, that added together give a palindrome (1015101).

The spelling of 615000400101 in words is "six hundred fifteen billion, four hundred thousand, one hundred one".