20219837148 has 36 divisors (see below), whose sum is σ = 58412863600. Its totient is φ = 5777096256.

The previous prime is 20219837129. The next prime is 20219837159. The reversal of 20219837148 is 84173891202.

It is a happy number.

20219837148 is a `hidden beast` number, since 20 + 219 + 8 + 371 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40118473 + ... + 40118976.

Almost surely, 2^20219837148 is an apocalyptic number.

20219837148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20219837148 is an abundant number, since it is smaller than the sum of its proper divisors (38193026452).

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

20219837148 is a wasteful number, since it uses less digits than its factorization.

20219837148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80237466 (or 80237461 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 20219837148 in words is "twenty billion, two hundred nineteen million, eight hundred thirty-seven thousand, one hundred forty-eight".