266152620 has 48 divisors (see below), whose sum is σ = 746645760. Its totient is φ = 70838976.

The previous prime is 266152567. The next prime is 266152637. The reversal of 266152620 is 26251662.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29841 + ... + 37719.

It is an arithmetic number, because the mean of its divisors is an integer number (15555120).

Almost surely, 2^266152620 is an apocalyptic number.

266152620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266152620 is an abundant number, since it is smaller than the sum of its proper divisors (480493140).

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

266152620 is a wasteful number, since it uses less digits than its factorization.

266152620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8454 (or 8452 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 266152620 is about 16314.1846256563. The cubic root of 266152620 is about 643.2457348639.

The spelling of 266152620 in words is "two hundred sixty-six million, one hundred fifty-two thousand, six hundred twenty".