203145540650206 has 32 divisors (see below), whose sum is σ = 388743625974528. Its totient is φ = 77306971069440.

The previous prime is 203145540650147. The next prime is 203145540650231. The reversal of 203145540650206 is 602056045541302.

It is a super-2 number, since 2×203145540650206² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

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, 15338678115 + ... + 15338691358.

It is an arithmetic number, because the mean of its divisors is an integer number (12148238311704).

Almost surely, 2^{203145540650206} is an apocalyptic number.

203145540650206 is a deficient number, since it is larger than the sum of its proper divisors (185598085324322).

203145540650206 is a wasteful number, since it uses less digits than its factorization.

203145540650206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30677369536.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 203145540650206 in words is "two hundred three trillion, one hundred forty-five billion, five hundred forty million, six hundred fifty thousand, two hundred six".