1020658080 has 96 divisors (see below), whose sum is σ = 3462407424. Its totient is φ = 251237376.

The previous prime is 1020658031. The next prime is 1020658081. The reversal of 1020658080 is 808560201.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1020658081) 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, 75544 + ... + 88023.

It is an arithmetic number, because the mean of its divisors is an integer number (36066744).

Almost surely, 2^1020658080 is an apocalyptic number.

1020658080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020658080 is an abundant number, since it is smaller than the sum of its proper divisors (2441749344).

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

1020658080 is a wasteful number, since it uses less digits than its factorization.

1020658080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163598 (or 163590 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1020658080 is about 31947.7398261598. The cubic root of 1020658080 is about 1006.8391461158.

It can be divided in two parts, 10206 and 58080, that added together give a palindrome (68286).

The spelling of 1020658080 in words is "one billion, twenty million, six hundred fifty-eight thousand, eighty".