662040312155 has 4 divisors (see below), whose sum is σ = 794448374592. Its totient is φ = 529632249720.

The previous prime is 662040312053. The next prime is 662040312191. The reversal of 662040312155 is 551213040266.

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

It is not a de Polignac number, because 662040312155 - 2¹⁴ = 662040295771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66204031211 + ... + 66204031220.

It is an arithmetic number, because the mean of its divisors is an integer number (198612093648).

Almost surely, 2^662040312155 is an apocalyptic number.

662040312155 is a deficient number, since it is larger than the sum of its proper divisors (132408062437).

662040312155 is a wasteful number, since it uses less digits than its factorization.

662040312155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132408062436.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 662040312155 in words is "six hundred sixty-two billion, forty million, three hundred twelve thousand, one hundred fifty-five".