1655140012 has 12 divisors (see below), whose sum is σ = 2899448496. Its totient is φ = 826726160.

The previous prime is 1655139991. The next prime is 1655140033. The reversal of 1655140012 is 2100415561.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1655139991) and next prime (1655140033).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206539 + ... + 214402.

It is an arithmetic number, because the mean of its divisors is an integer number (241620708).

Almost surely, 2^1655140012 is an apocalyptic number.

It is an amenable number.

1655140012 is a deficient number, since it is larger than the sum of its proper divisors (1244308484).

1655140012 is a wasteful number, since it uses less digits than its factorization.

1655140012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421928 (or 421926 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1655140012 is about 40683.4120004702. The cubic root of 1655140012 is about 1182.8915040239.

Adding to 1655140012 its reverse (2100415561), we get a palindrome (3755555573).

The spelling of 1655140012 in words is "one billion, six hundred fifty-five million, one hundred forty thousand, twelve".