1655111002 has 4 divisors (see below), whose sum is σ = 2482666506. Its totient is φ = 827555500.

The previous prime is 1655110991. The next prime is 1655111021. The reversal of 1655111002 is 2001115561.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2001115561 = 1051 ⋅1904011.

It can be written as a sum of positive squares in only one way, i.e., 952277881 + 702833121 = 30859^2 + 26511^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413777749 + ... + 413777752.

Almost surely, 2^1655111002 is an apocalyptic number.

1655111002 is a deficient number, since it is larger than the sum of its proper divisors (827555504).

1655111002 is an equidigital number, since it uses as much as digits as its factorization.

1655111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827555503.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 1655111002 is about 40683.0554653900. The cubic root of 1655111002 is about 1182.8845930510.

Adding to 1655111002 its reverse (2001115561), we get a palindrome (3656226563).

The spelling of 1655111002 in words is "one billion, six hundred fifty-five million, one hundred eleven thousand, two".