106251640615 has 4 divisors (see below), whose sum is σ = 127501968744. Its totient is φ = 85001312488.

The previous prime is 106251640549. The next prime is 106251640643. The reversal of 106251640615 is 516046152601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106251640615 - 2⁷ = 106251640487 is a prime.

It is a super-3 number, since 3×106251640615³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10625164057 + ... + 10625164066.

It is an arithmetic number, because the mean of its divisors is an integer number (31875492186).

Almost surely, 2^106251640615 is an apocalyptic number.

106251640615 is a deficient number, since it is larger than the sum of its proper divisors (21250328129).

106251640615 is an equidigital number, since it uses as much as digits as its factorization.

106251640615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21250328128.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 106251640615 in words is "one hundred six billion, two hundred fifty-one million, six hundred forty thousand, six hundred fifteen".