82021137662 has 4 divisors (see below), whose sum is σ = 123031706496. Its totient is φ = 41010568830.

The previous prime is 82021137659. The next prime is 82021137689. The reversal of 82021137662 is 26673112028.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20505284414 + ... + 20505284417.

It is an arithmetic number, because the mean of its divisors is an integer number (30757926624).

Almost surely, 2^82021137662 is an apocalyptic number.

82021137662 is a deficient number, since it is larger than the sum of its proper divisors (41010568834).

82021137662 is a wasteful number, since it uses less digits than its factorization.

82021137662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41010568833.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 82021137662 in words is "eighty-two billion, twenty-one million, one hundred thirty-seven thousand, six hundred sixty-two".