1655222516 has 6 divisors (see below), whose sum is σ = 2896639410. Its totient is φ = 827611256.

The previous prime is 1655222509. The next prime is 1655222533. The reversal of 1655222516 is 6152225561.

It can be written as a sum of positive squares in only one way, i.e., 1391290000 + 263932516 = 37300^2 + 16246^2 .

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, 206902811 + ... + 206902818.

It is an arithmetic number, because the mean of its divisors is an integer number (482773235).

Almost surely, 2^1655222516 is an apocalyptic number.

It is an amenable number.

1655222516 is a deficient number, since it is larger than the sum of its proper divisors (1241416894).

1655222516 is a wasteful number, since it uses less digits than its factorization.

1655222516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413805633 (or 413805631 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 1655222516 is about 40684.4259637518. The cubic root of 1655222516 is about 1182.9111582844.

The spelling of 1655222516 in words is "one billion, six hundred fifty-five million, two hundred twenty-two thousand, five hundred sixteen".