646414034250155 has 8 divisors (see below), whose sum is σ = 775805772029184. Its totient is φ = 517058606780800.

The previous prime is 646414034250121. The next prime is 646414034250167. The reversal of 646414034250155 is 551052430414646.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 646414034250155 - 2¹⁸ = 646414033988011 is a prime.

It is a super-2 number, since 2×646414034250155² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9077538251 + ... + 9077609460.

It is an arithmetic number, because the mean of its divisors is an integer number (96975721503648).

Almost surely, 2^{646414034250155} is an apocalyptic number.

646414034250155 is a deficient number, since it is larger than the sum of its proper divisors (129391737779029).

646414034250155 is a wasteful number, since it uses less digits than its factorization.

646414034250155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18155154837.

The product of its (nonzero) digits is 6912000, while the sum is 50.

The spelling of 646414034250155 in words is "six hundred forty-six trillion, four hundred fourteen billion, thirty-four million, two hundred fifty thousand, one hundred fifty-five".