20354377345302 has 128 divisors (see below), whose sum is σ = 54865737400320. Its totient is φ = 4861614234240.

The previous prime is 20354377345301. The next prime is 20354377345303.

20354377345302 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (20354377345301) and next prime (20354377345303).

It is a super-2 number, since 2×20354377345302² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20354377345301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4863402 + ... + 8022557.

It is an arithmetic number, because the mean of its divisors is an integer number (428638573440).

Almost surely, 2^{20354377345302} is an apocalyptic number.

20354377345302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20354377345302 is an abundant number, since it is smaller than the sum of its proper divisors (34511360055018).

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

20354377345302 is a wasteful number, since it uses less digits than its factorization.

20354377345302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12886258.

The product of its (nonzero) digits is 6350400, while the sum is 48.

The spelling of 20354377345302 in words is "twenty trillion, three hundred fifty-four billion, three hundred seventy-seven million, three hundred forty-five thousand, three hundred two".