1056121650501 has 8 divisors (see below), whose sum is σ = 1408622246304. Its totient is φ = 703851077520.

The previous prime is 1056121650443. The next prime is 1056121650517. The reversal of 1056121650501 is 1050561216501.

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

It is not a de Polignac number, because 1056121650501 - 2¹¹ = 1056121648453 is a prime.

It is a super-2 number, since 2×1056121650501² (a number of 25 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056121650901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57494991 + ... + 57513356.

It is an arithmetic number, because the mean of its divisors is an integer number (176077780788).

Almost surely, 2^{1056121650501} is an apocalyptic number.

It is an amenable number.

1056121650501 is a deficient number, since it is larger than the sum of its proper divisors (352500595803).

1056121650501 is a wasteful number, since it uses less digits than its factorization.

1056121650501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115011411.

The product of its (nonzero) digits is 9000, while the sum is 33.

The spelling of 1056121650501 in words is "one trillion, fifty-six billion, one hundred twenty-one million, six hundred fifty thousand, five hundred one".