1620126496 has 12 divisors (see below), whose sum is σ = 3189624102. Its totient is φ = 810063232.

The previous prime is 1620126491. The next prime is 1620126527. The reversal of 1620126496 is 6946210261.

It can be written as a sum of positive squares in only one way, i.e., 1576090000 + 44036496 = 39700^2 + 6636^2 .

It is not an unprimeable number, because it can be changed into a prime (1620126491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25314445 + ... + 25314508.

Almost surely, 2^1620126496 is an apocalyptic number.

1620126496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1620126496 is a deficient number, since it is larger than the sum of its proper divisors (1569497606).

1620126496 is an equidigital number, since it uses as much as digits as its factorization.

1620126496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50628963 (or 50628955 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1620126496 is about 40250.7949735157. The cubic root of 1620126496 is about 1174.4908603882.

The spelling of 1620126496 in words is "one billion, six hundred twenty million, one hundred twenty-six thousand, four hundred ninety-six".