2602156020 has 96 divisors (see below), whose sum is σ = 7856714880. Its totient is φ = 641341440.

The previous prime is 2602156009. The next prime is 2602156031. The reversal of 2602156020 is 206512062.

It is an interprime number because it is at equal distance from previous prime (2602156009) and next prime (2602156031).

It is a congruent number.

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, 18904 + ... + 74576.

It is an arithmetic number, because the mean of its divisors is an integer number (81840780).

Almost surely, 2^2602156020 is an apocalyptic number.

2602156020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2602156020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3928357440).

2602156020 is an abundant number, since it is smaller than the sum of its proper divisors (5254558860).

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

2602156020 is a wasteful number, since it uses less digits than its factorization.

2602156020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55745 (or 55743 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2602156020 is about 51011.3322703887. The cubic root of 2602156020 is about 1375.4488487256.

Adding to 2602156020 its reverse (206512062), we get a palindrome (2808668082).

The spelling of 2602156020 in words is "two billion, six hundred two million, one hundred fifty-six thousand, twenty".