1655959970 has 32 divisors (see below), whose sum is σ = 3606933888. Its totient is φ = 534359808.

The previous prime is 1655959939. The next prime is 1655959973. The reversal of 1655959970 is 799595561.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1655959973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694592 + ... + 696971.

It is an arithmetic number, because the mean of its divisors is an integer number (112716684).

Almost surely, 2^1655959970 is an apocalyptic number.

1655959970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1655959970 is an abundant number, since it is smaller than the sum of its proper divisors (1950973918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1655959970 is a wasteful number, since it uses less digits than its factorization.

1655959970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391594.

The product of its (nonzero) digits is 3827250, while the sum is 56.

The square root of 1655959970 is about 40693.4880539872. The cubic root of 1655959970 is about 1183.0868069836.

The spelling of 1655959970 in words is "one billion, six hundred fifty-five million, nine hundred fifty-nine thousand, nine hundred seventy".