20311167702 has 64 divisors (see below), whose sum is σ = 47109579264. Its totient is φ = 5717848320.

The previous prime is 20311167689. The next prime is 20311167739. The reversal of 20311167702 is 20776111302.

It is a self number, because there is not a number n which added to its sum of digits gives 20311167702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3636552 + ... + 3642132.

It is an arithmetic number, because the mean of its divisors is an integer number (736087176).

Almost surely, 2^20311167702 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20311167702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23554789632).

20311167702 is an abundant number, since it is smaller than the sum of its proper divisors (26798411562).

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

20311167702 is a wasteful number, since it uses less digits than its factorization.

20311167702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6853.

The product of its (nonzero) digits is 3528, while the sum is 30.

The spelling of 20311167702 in words is "twenty billion, three hundred eleven million, one hundred sixty-seven thousand, seven hundred two".