20148117846 has 8 divisors (see below), whose sum is σ = 40296235704. Its totient is φ = 6716039280.

The previous prime is 20148117841. The next prime is 20148117853. The reversal of 20148117846 is 64871184102.

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

20148117846 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20148117798 and 20148117807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20148117841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679009815 + ... + 1679009826.

It is an arithmetic number, because the mean of its divisors is an integer number (5037029463).

Almost surely, 2^20148117846 is an apocalyptic number.

20148117846 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20148117846 is a wasteful number, since it uses less digits than its factorization.

20148117846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358019646.

The product of its (nonzero) digits is 86016, while the sum is 42.

It can be divided in two parts, 20 and 148117846, that added together give a triangular number (148117866 = T₁₇₂₁₁).

The spelling of 20148117846 in words is "twenty billion, one hundred forty-eight million, one hundred seventeen thousand, eight hundred forty-six".