20326156342 has 16 divisors (see below), whose sum is σ = 30618508032. Its totient is φ = 10120038120.

The previous prime is 20326156303. The next prime is 20326156381. The reversal of 20326156342 is 24365162302.

It is an interprime number because it is at equal distance from previous prime (20326156303) and next prime (20326156381).

It is a junction number, because it is equal to n+sod(n) for n = 20326156298 and 20326156307.

It is a congruent 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, 843343 + ... + 867109.

It is an arithmetic number, because the mean of its divisors is an integer number (1913656752).

Almost surely, 2^20326156342 is an apocalyptic number.

20326156342 is a deficient number, since it is larger than the sum of its proper divisors (10292351690).

20326156342 is a wasteful number, since it uses less digits than its factorization.

20326156342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25563.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 20326156342 in words is "twenty billion, three hundred twenty-six million, one hundred fifty-six thousand, three hundred forty-two".