20201618376 has 96 divisors (see below), whose sum is σ = 57148072800. Its totient is φ = 6685338240.

The previous prime is 20201618329. The next prime is 20201618401. The reversal of 20201618376 is 67381610202.

20201618376 is a `hidden beast` number, since 2 + 0 + 2 + 0 + 1 + 618 + 37 + 6 = 666.

It is a super-4 number, since 4×20201618376⁴ (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20201618376.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232836 + ... + 307596.

It is an arithmetic number, because the mean of its divisors is an integer number (595292425).

Almost surely, 2^20201618376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20201618376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28574036400).

20201618376 is an abundant number, since it is smaller than the sum of its proper divisors (36946454424).

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

20201618376 is a wasteful number, since it uses less digits than its factorization.

20201618376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74921 (or 74905 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20201618376 in words is "twenty billion, two hundred one million, six hundred eighteen thousand, three hundred seventy-six".