201266154554 has 32 divisors (see below), whose sum is σ = 331737696720. Its totient is φ = 91155197952.

The previous prime is 201266154547. The next prime is 201266154601. The reversal of 201266154554 is 455451662102.

It can be written as a sum of positive squares in 8 ways, for example, as 81040994329 + 120225160225 = 284677^2 + 346735^2 .

It is a super-2 number, since 2×201266154554² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17459 + ... + 634694.

Almost surely, 2^201266154554 is an apocalyptic number.

201266154554 is a deficient number, since it is larger than the sum of its proper divisors (130471542166).

201266154554 is a wasteful number, since it uses less digits than its factorization.

201266154554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652514.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 201266154554 in words is "two hundred one billion, two hundred sixty-six million, one hundred fifty-four thousand, five hundred fifty-four".