1620546562 has 8 divisors (see below), whose sum is σ = 2440063296. Its totient is φ = 807192132.

The previous prime is 1620546527. The next prime is 1620546563. The reversal of 1620546562 is 2656450261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1620546562² = 5252342319220039688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1620546563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1539918 + ... + 1540969.

It is an arithmetic number, because the mean of its divisors is an integer number (305007912).

Almost surely, 2^1620546562 is an apocalyptic number.

1620546562 is a deficient number, since it is larger than the sum of its proper divisors (819516734).

1620546562 is a wasteful number, since it uses less digits than its factorization.

1620546562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081152.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 1620546562 is about 40256.0127434400. The cubic root of 1620546562 is about 1174.5923588505.

The spelling of 1620546562 in words is "one billion, six hundred twenty million, five hundred forty-six thousand, five hundred sixty-two".