2056510154646 has 12 divisors (see below), whose sum is σ = 4455772001772. Its totient is φ = 685503384876.

The previous prime is 2056510154599. The next prime is 2056510154683. The reversal of 2056510154646 is 6464510156502.

2056510154646 is a `hidden beast` number, since 2 + 0 + 5 + 65 + 1 + 0 + 1 + 546 + 46 = 666.

It is a super-3 number, since 3×2056510154646³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57125282056 + ... + 57125282091.

It is an arithmetic number, because the mean of its divisors is an integer number (371314333481).

Almost surely, 2^{2056510154646} is an apocalyptic number.

2056510154646 is an abundant number, since it is smaller than the sum of its proper divisors (2399261847126).

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

2056510154646 is a wasteful number, since it uses less digits than its factorization.

2056510154646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114250564155 (or 114250564152 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 2056510154646 in words is "two trillion, fifty-six billion, five hundred ten million, one hundred fifty-four thousand, six hundred forty-six".