219711920156 has 6 divisors (see below), whose sum is σ = 384495860280. Its totient is φ = 109855960076.

The previous prime is 219711920119. The next prime is 219711920159. The reversal of 219711920156 is 651029117912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219711920159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27463990016 + ... + 27463990023.

It is an arithmetic number, because the mean of its divisors is an integer number (64082643380).

Almost surely, 2^219711920156 is an apocalyptic number.

It is an amenable number.

219711920156 is a deficient number, since it is larger than the sum of its proper divisors (164783940124).

219711920156 is a wasteful number, since it uses less digits than its factorization.

219711920156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54927980043 (or 54927980041 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 44.

The spelling of 219711920156 in words is "two hundred nineteen billion, seven hundred eleven million, nine hundred twenty thousand, one hundred fifty-six".