2061550406 has 16 divisors (see below), whose sum is σ = 3216457728. Its totient is φ = 989905800.

The previous prime is 2061550363. The next prime is 2061550411. The reversal of 2061550406 is 6040551602.

It is a congruent number.

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, 118790 + ... + 135033.

It is an arithmetic number, because the mean of its divisors is an integer number (201028608).

Almost surely, 2^2061550406 is an apocalyptic number.

2061550406 is a deficient number, since it is larger than the sum of its proper divisors (1154907322).

2061550406 is a wasteful number, since it uses less digits than its factorization.

2061550406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253987.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2061550406 is about 45404.2994219710. The cubic root of 2061550406 is about 1272.7154591337.

The spelling of 2061550406 in words is "two billion, sixty-one million, five hundred fifty thousand, four hundred six".