1020098664 has 128 divisors (see below), whose sum is σ = 3157056000. Its totient is φ = 303028992.

The previous prime is 1020098641. The next prime is 1020098689. The reversal of 1020098664 is 4668900201.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75169 + ... + 87695.

It is an arithmetic number, because the mean of its divisors is an integer number (24664500).

Almost surely, 2^1020098664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020098664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1578528000).

1020098664 is an abundant number, since it is smaller than the sum of its proper divisors (2136957336).

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

1020098664 is a wasteful number, since it uses less digits than its factorization.

1020098664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12584 (or 12574 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1020098664 is about 31938.9834528277. The cubic root of 1020098664 is about 1006.6551651879.

Adding to 1020098664 its reverse (4668900201), we get a palindrome (5688998865).

The spelling of 1020098664 in words is "one billion, twenty million, ninety-eight thousand, six hundred sixty-four".