64542006562 has 16 divisors (see below), whose sum is σ = 108190149984. Its totient is φ = 28621732000.

The previous prime is 64542006559. The next prime is 64542006583. The reversal of 64542006562 is 26560024546.

It is a super-2 number, since 2×64542006562² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35776264 + ... + 35778067.

It is an arithmetic number, because the mean of its divisors is an integer number (6761884374).

Almost surely, 2^64542006562 is an apocalyptic number.

64542006562 is a deficient number, since it is larger than the sum of its proper divisors (43648143422).

64542006562 is a wasteful number, since it uses less digits than its factorization.

64542006562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71554385.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 64542006562 in words is "sixty-four billion, five hundred forty-two million, six thousand, five hundred sixty-two".